COMPARISION OF YIELD AND YIELD CONTRIBUTINGCHARACTERS OF 13 ADVANCED POPULATIONS OF BRASSICA RAPA L.

Abstract

A research was conducted in the experimental farm of Sher-e-Bangla Agricultural university, by using ten F 6 , one F 15 & two F 16 populations during November 2017-February 2018. The purpose of the experiment was to study variation in yield, numbers of seed per plant of the F 6 , F 15 and F 16 select the plant with higher yield and short duration. Mean performance, range and CV (%) of seed yield and yield contributing characters confirmed that there were considerable variation existed among the genotypes used in the experiment. The values of phenotypic variances were higher compared than the genotypic variances. Days to 50% flowering, 80% days of maturity, number of branches, number of secondary branches, number of siliqua per plant, number of seeds per plant, thousand seed weight and yield per plant showed least differences between genotypic and phenotypic variation. Moreover, the thirteen advanced populations of Brassica rapa showed significant variation in mean which provided opportunity to select promising populations for further higher yield trial. Two short duration and desired high yield populations were selected. They were SAU 2 x BARI 6 (F 6 , S 4 ) and BARI 9 x BARI 6 (F 16 , S 5 , early). For future trial BARI 9 x BARI 6 (F 16 , S 5 , early) can be selected as a parent. materials to